供應(yīng)商 | 北京友盛興業(yè)科技有限公司 店鋪 |
---|---|
認(rèn)證 | |
報(bào)價(jià) | 人民幣 10.00元每個(gè) |
產(chǎn)地 | 其它 |
品牌 | TDK |
材質(zhì) | 其它 |
關(guān)鍵詞 | B64290A0730X010,B66367GX127,B67345B1X87,TDK鐵氧體磁環(huán) |
所在地 | 北京市海淀區(qū)高粱橋路上園村甲4號(hào)臺(tái)體517 |
K10芯體材料TDK鐵氧體磁環(huán)B64290A0730X010
鐵氧體磁芯與配件 R87/54.3/13.5 K10 toroid
制造商: TDK
產(chǎn)品種類: 鐵氧體磁芯 高頻磁環(huán) 高頻導(dǎo)磁環(huán) 錳鋅鐵氧體磁芯 納米晶軟磁芯 非晶合金磁芯 鎳鋅鐵氧體 鐵鎳鉬磁粉芯 鐵硅鋁磁粉芯
系列: T87/54.3/13.5
產(chǎn)品: Toroids
類型: Ungapped
芯體材料: K10
封裝: Bulk
商標(biāo): EPCOS / TDK
內(nèi)徑: 54.3 mm
內(nèi)部高度: 13.5 mm
內(nèi)部長(zhǎng)度: 87 mm
產(chǎn)品類型: Ferrite Cores & Accessories
工廠包裝數(shù)量:12
子類別: Ferrites
零件號(hào)別名: B64290A730X10
單位重量: 235 g
一,什么是居里溫度?
隨著溫度的升高,由于物質(zhì)內(nèi)部基本粒子的熱振蕩加劇,磁性材料內(nèi)部的微觀磁偶極矩的排列逐步紊亂,宏觀上表現(xiàn)為材料的磁極化強(qiáng)度 J隨著溫度的升高而減小,當(dāng)溫度升高至某一 值時(shí),材料的磁極化強(qiáng)度 J 降為 0,此時(shí)磁性材料的磁特性變得同空氣等非磁性物質(zhì)一樣, 將此溫度稱為該材料的居里溫度(Tc 表示)。居里溫度 Tc 只與合金的成分有關(guān),與材料的 顯微組織形貌及其分布無關(guān)。
磁性材料的居里溫度 Tc 代表著該材料的理論工作溫度極限。事實(shí)上,永磁材料的實(shí)際可工作溫度 Tw 遠(yuǎn)低于 Tc。
釹鐵硼的居里溫度點(diǎn)是 300 多攝氏度,Tc 是磁性材料的重要參數(shù),Tc 高,材料的工作溫度可提高,也可提高磁性材料的溫度穩(wěn)定性。加鈷、鋱、鏑等可提高磁性材料的居里溫度,因 此在高矯頸力的產(chǎn)品中(H、SH、…… )都加有鏑等提高 Tc 的材料。
值得注意的是,任何永磁體的可工作 Tw 不僅與磁體的 Tc 有關(guān),還與磁體的 jHc 等磁性能指標(biāo)、以及磁體在磁路中的工作狀態(tài)有關(guān)。
二,什么叫工作溫度?
指磁體在一定環(huán)境溫度下,磁能量下降不超過 10%時(shí)長(zhǎng)時(shí)間連續(xù)工作的實(shí)際溫度,單位°C.
三,什么是內(nèi)稟矯頑力?
在磁材加上反向磁場(chǎng) H 增大到某一值 JHC 時(shí),磁體內(nèi)部的微觀磁偶極距的矢量和為 0 時(shí),稱該反方向磁場(chǎng) H 值為該材料的內(nèi)稟矯頑力,用 Hc 表示。釹鐵硼的 Hcj 會(huì)隨著溫度的升 高而降低所以需要工作在高溫環(huán)境下時(shí)應(yīng)該選擇高 Hcj 的牌號(hào)。(Hcj)單位是安/米(A/m)和奧斯特(Oe)
1 Oe≈79.6A/m。
一般表示:
N 12000;M 14000;H 17000;SH 2000;UH 25000;EH 30000;AH 35000 。
單位: Oe 1kOe=1000Oe
北京友盛興業(yè)科技有限公司代理供應(yīng)TDK鐵氧體磁芯,歡迎來電咨詢
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產(chǎn)品名:儀器儀表配件
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